1. Cincinnati Designed by Frank Lloyd Wright in 1955, the Gerald B. Tonkens House is on the market for the first time. The three--bedroom home is set on 4.1 acres and built with 11 different patterns of concrete block and hundreds of inset windows. Additional interior details include mahogany panels, gold-leaf ceilings, and an oversize fireplace. $1,788,000. David Wellinghoff, Comey & Shepherd/Christie’s International Real Estate, (513) 979-2685

2. Phoenix This five-bedroom home built in 1982 is one of only two single-family residences created by Paolo Soleri, the designer of Arcosanti, an experimental town in the desert. The house features a barrel ceiling, solid wood floors, and two fireplaces. The yard includes a heated pool, a built-in barbecue, and mature trees. $2,000,000. DeVon Connors, Coldwell Banker Residential Brokerage/Top Agent Network, (602) 954-6888

3. Darien, Conn. Architect Edward Durell Stone, designer of the Kennedy Center, built this four-bedroom home in 1954. The Japanese-style A-frame features shoji screens, a living room with a loft, and a fireplace. Located on a cul-de-sac, the 1.1-acre property includes a koi pond, a brick lattice wall, and cypress trees. $1,600,000. Mary -Lopiano, Halstead Property, (203) 912-469

4. Mount Kisco, N.Y. This four-bedroom modern house on 6.9 acres was designed in 1972 by architect Richard Meier. Renovated in 2008, the home features floor-to-ceiling glass windows, a media room, two full kitchens, and a gym. The property includes a pool with a waterfall, a front courtyard, and a 30-foot high privacy wall. $3,495,000. Brian Milton, Houlihan Lawrence, (914) 469-9889

5. Los Angeles Built in 1973 by architect Amir Farr, this five-bedroom house in the Los Feliz neighborhood has 360-degree views of the ocean and downtown. Features include a two-story living room with floor-to-ceiling windows and a master suite with a sauna and a spa tub. Doors open onto terraces that surround a pool, and the property borders Griffith Park. $3,499,000. Tanya Stawski and Rose Borne, Sotheby’s International Realty, (310) 801-6033

6. Dallas This three-bedroom house was designed by architect Vince Snyder. The home is built out of recycled slate and includes exposed wooden beams, a geothermal HVAC system, and three living areas. A pedestrian walkway over a pond provides entry to the residence. $1,150,000. Mitch Deshotels, Allie Beth Allman & Associates, (214) 520-8309

Steal of the week7.Palm Springs, Calif. Richard Harrison built this two-bedroom, midcentury-modern house in 1967. The home features slate flooring, white cabinetry, and a 30-foot wall of glass. Part of the Seven Lakes Country Club, the property includes golfing, tennis, and swimming amenities. $460,000. Dean Sipe, HOM Sotheby’s International Realty, (760) 668-5386